Economics of Permanent Flood-Plain Evacuation

by Nolan L. Johnson, Jr., (A.M.ASCE), Utilities Section Leader; Office of Engrg., City of Atlanta, Atlanta, Ga.,

Serial Information: Journal of the Irrigation and Drainage Division, 1976, Vol. 102, Issue 3, Pg. 273-283

Document Type: Journal Paper


A method is given for computation of the average annual damage due to the flooding of structures. By using the procedure, the economics of the federally subsidized flood insurance program are evaluated in addition to a permanent evacuation of residents from the flood-plain area. The flood insurance was found to be a real economic bargain for the owner of the house. The benefit/cost ratio of certain land-use change plans involving the lower-lying houses was found to be 2.5. Since the benefit/cost ratio of flood insurance is unity, it was concluded that the land-use change plan of these lower areas was more feasible than flood insurance.

Subject Headings: Insurance | Economic factors | Residential buildings | Land use | Damage (structural) | Federal government | Evacuation | Flood plains

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